<p>these "colours" are "frames" and u can't make them, they appears to show the "rarity" or the "cyclopedia value" of an important loot/item when u have the correct settings it will show: <br> </p><ul><li>No frame means a gold value has yet to be defined in the Cyclopedia or equals 0.</li><li>Grey frame means a gold value of 1 - 999.</li><li>Green frame means a gold value of 1,000 - 9,999.</li><li>Blue frame means a gold value of 10,000 - 99,999.</li><li>Purple frame means a gold value of 100,000 - 999,999.</li><li>Yellow frame means a gold value of 1,000,000+.</li></ul><p>here an image to show how to configure this feature:<img alt="" src="https://www.tibiaqa.com/?qa=blob&qa_blobid=2201707332511251243" style="height:428px; width:600px"> <br>So u only have to go settings > Interface > Colourise Loot Value<br><br>There u can show choose between frames, corners or none.<br><br>Please keep in mind that u need to check "show advanced options" to actually find that</p>